[Leica] HELP Non Leica Related Praktina FX mating Spring Wound Winder to one

[Mark Kronquist]

Found a lovely three lens kit at the Newspace Gallery Swap Meet last weekend   (Portland, Oregon April and October great swap meet) 

Does anyone out there have any experience mating the winder to the camera? Or releasing the wound spring? I see how the mechanics work, the daisy wheel to engage the pins on the baseplate…but what is behind the slide down cover at the end and what purpose does the lever on the bottom of the winder serve? Can git er on  can’t git er to go 

Camera releases fine w/o motor

thanks


Mark